Document and Entity Information	9 Months Ended
	Aug. 31, 2018 shares
Document Information [Line Items]
Entity Registrant Name	MCCORMICK & CO INC
Entity Central Index Key	0000063754
Current Fiscal Year End Date	--11-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Aug. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	9,897,378
Nonvoting Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding	121,767,817